Markdown is a lightweight markup language that is widely used for formatting plain text documents. It was created by John Gruber and Aaron Swartz in 2004 to allow people to write using an easy-to-read and easy-to-write plain text format that could be converted into structurally valid HTML.
Markdown is often used for creating documents, notes, and web content where simple formatting is needed without the complexity of a full-fledged markup language like HTML. It uses a simple syntax that is designed to be both human-readable and easily convertible to HTML. Markdown documents can be easily converted to HTML or other formats using various tools and libraries.
Here are some basic elements of Markdown syntax:
Headers:
To create a heading, add number signs (#) in front of a phrase or word. The number of # signs should correspond to the heading level. For compatibility with all applications, it is a good practice to put a space between the number of signs and the heading name.
# Header 1 ## Header 2 ### Header 3
Emphasis:
To bold text, add two asterisks or underscores before and after a word or phrase. To bold a word in the middle of a sentence add two asterisks without spaces around the letters.
To italicize text, add one asterisk or underscore before and after word or phrase. To italicize a word in the middle of a sentence add one asterisk without spaces around the letters.
*italic* or _italic_ **bold** or __bold__
Lists:
To create an unordered list, add dashes ("-"), asterisks ("*"), or plus signs ("+") in front of the line items. If you want to create a nested list, indent one or more items.
To create an ordered list, add numbers followed by periods. List should start with number one.
- Item 1 - Item 2 - Indented item + Item 3 + Item 4 + Item 5 * Item 6 * Item 7 * Item 8 1. Numbered Item 1 2. Numbered Item 2 1. Indented item
Links:
To create a link enclose the link text in brackets and then follow it immediately with the URL in parentheses
[Link Text](<https://www.example.com>)
Images:
To add an image, add an exclamation mark ("!"), followed by alternative text in brackets and the path or URL to the image asset in parentheses.
![Alt Text](image.jpg)
Blockquotes:
To create a blockquote, add a ">" in front of a paragraph
> This is a blockquote.
Code:
To mark a word or phrase as code, enclose it in backticks ("`"). To create a block of code add three backticks followed by the language that the code is written.
`inline code` ```python # Code block print("DevOps Dojo")
Markdown is supported by many platforms and applications, including GitHub, Stack Overflow, and various blogging platforms. Its simplicity and readability make it a popular choice for quickly creating formatted text without the need for a complex authoring environment.
README.md
A README.md
file is a special type of file commonly found in software projects, particularly those hosted on platforms like GitHub. The term "README" stands for "Read Me," and the ".md" extension indicates that it is written in Markdown.
The purpose of a README.md
file is to provide essential information about a project to other developers, collaborators, or users who come across the project repository. It serves as a kind of introductory and instructional document that helps people understand what the project is about, how to use it, and how to contribute to it.
Here are some common elements you might find in a README.md
file:
Project Description:
- Briefly explain what the project does and its purpose.
Installation Instructions:
- Describes how to install or set up the project locally.
Usage:
- Provides information on how to use the project, including code examples or usage scenarios.
Contributing Guidelines:
- Outlines how others can contribute to the project, including information on submitting bug reports, feature requests, or pull requests.
License:
- Specifies the project's licensing information.
Documentation Links:
- Includes links to additional documentation or external resources.
Contact Information:
- Provides contact details or links to communication channels for getting in touch with the project maintainers or contributors.
Project Structure:
- Describes the structure of the project, including key directories or files.
Badges:
- Includes badges that provide quick information about the project's status, such as build status, code coverage, or license type.
Here's a simple example of what a README.md
file might look like:
# Project Name
A brief description of the project.
## Installation
Provide step-by-step instructions on how to install the project.
## Usage
Explain how to use the project, and include code examples if necessary.
## Contributing
Please read [CONTRIBUTING.md](CONTRIBUTING.md) for details on our code of conduct and the process for submitting pull requests to us.
## License
This project is licensed under the XYZ License - see the [LICENSE.md](LICENSE.md) file for details.
Writing a well-crafted README.md
file is important for the overall success of a project, as it helps users and developers quickly understand and engage with the project.